From: Jaroslav Kysela <perex@perex.cz>
To: ALSA development <alsa-devel@alsa-project.org>
Cc: Takashi Iwai <tiwai@suse.de>, stable@vger.kernel.org
Subject: [PATCH] ALSA: pcm - fix mmap capability check for the snd-dummy driver
Date: Fri, 30 Jul 2021 11:02:54 +0200 [thread overview]
Message-ID: <20210730090254.612478-1-perex@perex.cz> (raw)
The snd-dummy driver (fake_buffer configuration) uses the ops->page
callback for the mmap operations. Allow mmap for this case, too.
Cc: <stable@vger.kernel.org>
Fixes: c4824ae7db41 ("ALSA: pcm: Fix mmap capability check")
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
sound/core/pcm_native.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 6a2971a7e6a1..09c0e2a6489c 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -246,7 +246,7 @@ static bool hw_support_mmap(struct snd_pcm_substream *substream)
if (!(substream->runtime->hw.info & SNDRV_PCM_INFO_MMAP))
return false;
- if (substream->ops->mmap)
+ if (substream->ops->mmap || substream->ops->page)
return true;
switch (substream->dma_buffer.dev.type) {
--
2.31.1
WARNING: multiple messages have this Message-ID (diff)
From: Jaroslav Kysela <perex@perex.cz>
To: ALSA development <alsa-devel@alsa-project.org>
Cc: Takashi Iwai <tiwai@suse.de>, Jaroslav Kysela <perex@perex.cz>,
stable@vger.kernel.org
Subject: [PATCH] ALSA: pcm - fix mmap capability check for the snd-dummy driver
Date: Fri, 30 Jul 2021 11:02:54 +0200 [thread overview]
Message-ID: <20210730090254.612478-1-perex@perex.cz> (raw)
The snd-dummy driver (fake_buffer configuration) uses the ops->page
callback for the mmap operations. Allow mmap for this case, too.
Cc: <stable@vger.kernel.org>
Fixes: c4824ae7db41 ("ALSA: pcm: Fix mmap capability check")
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
sound/core/pcm_native.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 6a2971a7e6a1..09c0e2a6489c 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -246,7 +246,7 @@ static bool hw_support_mmap(struct snd_pcm_substream *substream)
if (!(substream->runtime->hw.info & SNDRV_PCM_INFO_MMAP))
return false;
- if (substream->ops->mmap)
+ if (substream->ops->mmap || substream->ops->page)
return true;
switch (substream->dma_buffer.dev.type) {
--
2.31.1
next reply other threads:[~2021-07-30 9:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-30 9:02 Jaroslav Kysela [this message]
2021-07-30 9:02 ` [PATCH] ALSA: pcm - fix mmap capability check for the snd-dummy driver Jaroslav Kysela
2021-07-30 18:20 ` Takashi Iwai
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